Invest 90L Likely to Become Arthur Within the Next 24-36 Hours


A trough of low pressure located over the Straits of Florida continues to produce disorganized shower activity and gusty winds across the Florida Keys, portions of southeast Florida, and the northwestern Bahamas. Gradual development of this system is expected, and it will likely become a tropical or subtropical storm on Saturday when it is located near the northwestern Bahamas. Later in the weekend and early next week, the system is expected to move generally northeastward over the western Atlantic.

Location … 23.8°N 81.3°W
Maximum Winds … 30 kt
Minimum Central Pressure … 1012 mb
Radius of Circulation … 120 NM
Radius of Maximum Wind … 60 NM

Regardless of development, the disturbance will continue to bring heavy rainfall to portions of the Florida Keys, southeast Florida, and the Bahamas through Saturday. Tropical-storm-force wind gusts are also possible across portions of the Florida Keys, southeast Florida, and the Bahamas during the next day or so. In addition, hazardous marine conditions are expected along the Florida east coast and in the Bahamas where Gale Warnings are in effect. Dangerous surf conditions and rip currents are possible along portions of the southeast U.S. coast this weekend and early next week. See products from your local weather office and High Seas Forecasts for more details. The Air Force Reserve Hurricane Hunter aircraft scheduled to investigate the system today has been canceled, but an aircraft is scheduled to investigate the disturbance tomorrow, if necessary.

* Formation chance through 48 hours…high…80 percent.
* Formation chance through 5 days…high…80 percent.

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